Computer trackball

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Information

Patent Grant
D353370

References
Source

Patent Number
D353,370
Date Filed
Friday, March 5, 1993
31 years ago
Date Issued
Tuesday, December 13, 1994
30 years ago

Inventors
Original Assignees
- Microsoft Corporation
Examiners
- Burke; Wallace R.
- Tung; M. H.
Agents
- Seed and Berry

US Classifications
- D14 - Recording, communication, or information retrieval equipment
Field of Search
- US
- 178 18-19
- 200 5 R
- 200 5 A
- 200 6 R
- 200 6 A
- 213 148 B
- 273 148 B
- 340 707
- 340 709-710
- 074 471 XY
- D14 100
- D14 114
- D14 218
- D13 158
- D13 168
- D21 48
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a computer trackball, as shown and described.

US Referenced Citations (19)

Number	Name	Date	Kind
D272921	Kim	Mar 1984
D281776	Griffin	Dec 1985
D288930	Barbera et al.	Mar 1987
D289306	Burnstein et al.	Apr 1987
D291318	Kim	Aug 1987
D292600	Wagner	Nov 1987
D300324	Akagi et al.	Mar 1989
D302010	McLaughlin et al.	Jul 1989
D302426	Bradley et al.	Jul 1989
D307739	Grant	May 1990
D309449	MacDonald et al.	Jul 1990
D315552	Sacherman	Mar 1991
D315896	Brown	Apr 1991
3625083	Bose	Dec 1971
3987685	Opocensky	Oct 1976
4404865	Kim	Sep 1983
4538476	Luque	Sep 1985
4799049	Avila	Jan 1989
5008528	Duchon	Apr 1991

Divisions (1)

	Number	Date	Country
Parent	665840	Mar 1991

Continuation in Parts (1)

	Number	Date	Country
Parent	598562	Oct 1990